Metrohm 883 Basic IC plus Manual page 90

4.10 Suppressor
4.10.3.4 Replacing parts of the suppressor
82
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Parts of the suppressor may have to be replaced in the following cases:
Irremediable loss of suppressor capacity (reduced phosphate sensitivity
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and/or significant rise in the baseline).
Irremediable blockage of the suppressor (solutions can no longer be
￭
pumped through the suppressor).
Both the rotor and the connecting piece can be replaced.
Replacing parts of the suppressor
1 Disconnecting the suppressor from the IC system
Switch off the instrument.
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Disconnect all capillaries of the suppressor from the IC system.
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2 Dismantling the suppressor
Unscrew the union nut (25-1) from the suppressor drive (25-5).
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Pull the connecting piece (25-2) out of the suppressor drive
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together with the rotor (25-3) and the adapter.
If the rotor and/or the adapter gets stuck in the suppressor drive,
you can push it out as follows:
Put a pointed object into the slot in the suppressor drive and use
it to push out the rotor and/or the adapter.
Loosen the connecting piece from the rotor.
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3 Cleaning the new rotor
Clean the sealing surface of the new rotor (25-3) with ethanol
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using a lint-free cloth.
4 Inserting the new rotor
CAUTION
The rotor may be destroyed during start-up if it is not inserted cor-
rectly.
Insert the rotor (25-3) into the adapter (see "Inserting the MSM
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rotor into the adapter", page 31).
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883 Basic IC plus